ADLINK DAQe-2006 - Manual (Page 73)

Operation Theory 61
Mode 5: Single Triggered Pulse Generation
This function generates a single pulse with programmable
delay and pro-grammable pulse-width following an active
GPTC_GATE edge. You could specify these programmable
parameters in terms of periods of the GPTC_CLK input. Once
the first GPTC_GATE edge triggers the single pulse,
GPTC_GATE takes no effect until the software-start is re-exe-
cuted. Figure 4-27 illustrates the generation of a single pulse
with a pulse delay of two and a pulse-width of four.
Figure 4-27: Mode 5 Operation
Mode 6: Re-triggered Single Pulse Generation
This mode is similar to Mode 5 except that the counter gener-
ates a pulse following every active edge of GPTC_GATE. After
the software-start, every active GPTC_GATE edge triggers a
single pulse with programmable delay and pulse-width. Any
GPTC_GATE triggers that occur when the prior pulse is not
completed would be ignored. Figure 4-28 illustrates the gener-
ation of two pulses with a pulse delay of two and a pulse-width
of four.
Figure 4-28: Mode 6 Operation